Maetifold-hbatek



V. J. WEINBERGER, MANIFOLD HEATER. APPLICATIN FI'LED APR. 12. 19i8.

Patenfed Dec. 9, 1919.

F/(ii.

INVAENT'OR ATTOFI N EY uuirnn snares VAUGHAN J. NEINBERGEB, O35 KENT/ ARR NORTH DAKOTA.

IvIANIFOLD-HEATER.

Application filed April 12, me. Serial No. 222,179.

1 '0 all whom it may concern Be it known that I, VAUGHAN J. Warwnunonn, a citizen of the United States, residing at Kenmare, in the county of i vard and State of Noi'th Dakota,'have invented certain new and useful Improvements in lilanifold-Heaters, of which the following is a specification.

This invention has relation to improvements in internal combustion engines, and particularly engines for use in motor vehieles, and the nature and objects thereof will be readily apparent to those skilled in the art to which it apperta-ins, in the lig t of the following explanation of the accompanying drawings, illustrating What 'i now believe to be the preferred embodiment or mechanical expression, of my inventionfrom among other forms and arrai'igeinents within the spirit thereof, or the scope of the appended claims.

An object of the invention is to provide primarily a heater for the intake manifold of the engine of a motor vehicle whereby to elevate the temperature of the charge 1 or to its introduction intothe cylinders to in sure proper and perfect combustion and for other purposes.

. Another object of the invention is to provide a manifold heater operable by electric current to maintain a region of comparatively high temperature around the intake manifold for the purpose above set forth.

A still further object of the invention is to provide a manifold heater fol the purpose above set forth including, a casing open atone side and formed with recesses to partly receive the manifold and a substantially semi-cylindrical casing forming a part of the heater to partly encompass the branch of the man fold to insure heating of the charge immediately subsequent to its issuance from the carburetor.

A still further object of the invention. is to provide an electric heater for intake manifolds of the character above set forth embodying a new and novel arrangement of an electric heating element whereby to secure a uniform and proper distribution of heat.

In addition to the foregoing my invention comprehends improvements in the details of construction and arrangement of the parts t be hereinafter more fully d ,scribed.

Specification of Letters Patent. i

Patented Dec. 9,

and particularly set forth in the appeiulec claims.

In the accompanying drawings in which similar and corresponding parts are designated by the same characters of reference throughout the several views in which they appear Figure l. is a view in front elevation of a manifold heater constructed in accordance with my invention, illustrating its application to an intake manifold.

Fig. 2, is a v'ew of the heater per in rear elevation, and 1 3, is a view of the heater in vertical section taken on the line 38 of Fig. 1.

v'i ith reference to the drawings, 10 indi cates the main casing which is open at its rear face, and is substantially rectangular in configuration, and somewhat shallow. The casing 10 is formed with a laterally extend recess 11 extending into the center of the casing, and is defined by walls 12 fornr ing a continuation of the walls of the casing 10. The side walls of the casing and the walls 1:2 are cut away as at 12" so as to ceive the horizontal or connecting portion 13 of the intake manifold. Secured to the exterior face of the casing 10 is an arcuate casing 14; -:lbstantially semi-circular in cross section, and provided at one end with an integrally formed flange 15 which is designed to engage the exterior surface of the *asing 10 to he secured thereto by means of bolts 16 which enter apertures in the ilange and openings in the casing. It will be ohvious from Fig. 3 that the arcuate casing 14: is so secured. to the casing 10 as to permit the branch 17 of the intake manifold to lie within th casing"- 14. ll-bolts 18 are pro-- vided at their terminals entering apertured cars 19 formed upon the edges of the uate casing l-flwhereby to engage the under side of the b anch 17" to secure the arcuate casing in place.

lvilountcd upon the upper edge of the cas ing; 10 in an opening provided therein is a;

block 20 of insulating material having a pair of binding posts 21 and mounted therein. A strardof high resistance is mounted within the casing 10 at one side of the vertical center, having one end c" the shaft connected to the binding post and then trailed back and forth within the casing 'with its opposite terminal secured to a stationary contact 24 mounted within the recess 11 adjacent the center of the main casing. A second strand of resistance Wire 25 is provided having one end connected to the other binding post 21 and trailed back 2L1'1Cl.f01th Within the casing at the side thereof, opposite the side occupied by the strand 23. The opposite end of the st and 25 is then connected to a stationary contact 26 mounted in opposed relation to the contact 2+1; and within the recess 11. A third strand of high resistance wire 37 is then trailed hack and forth within the arcuate casing l-t in a direction longitudinally thereof with interu'iediz'ttc loops of the strand securely anchored by any suitable means, and the terminals of the strand secured to stationary contacts in one end of the arcuate -asing l t designed for engagement with the contacts and 26. a

In use, the manifold heater is applied to the manifold as illustrated in Fig. l, ermitl'ing the horizontal portion of the manifold to enter the recess 14: and the vertical band 17 of the mani'lold to enter the arcuate casing ll of the manifold casing. The U-bolls 18 are then applied to the under side of the manifold and to the arcuate cas place. Current is then introduced into the binding posts and 22 and it will be readily seen that the current may traverse a path. including the strand 223, strand 27, returning through the strand to the binding post It desired the arcuate branch Ilmay be disengaged tronrthe main casing to 't'acilitate removal of the heater for repairs without removing the main easing as an entirety. \Vhen the arcuate branch is reapplied, the strands 27 therein would be automatically placed in series with the strands 23 and 25 by engagement of the contacts ll, 26 and 28 in the manner above stated.

Thus it will be seen that I have provided a unique manifold of extremely simple char acter, comprising few parts which may be readily mauutzu-tured and asseml'iled, thereby permittin the devices to be made economically and in quantities. It will be apparent that "by the use of this device, the intake manifold may be heated when desired. The heating of the manifold may be continuous during the winter time in order to' insure the proper treatn'ient ol the charge and in the summer time the manifold may be heated only until the engine has run tor a lime sullicient to supply its own heat to mg ll: to secure the manifold heater in.

the radiator whereupon the supply of current to the manifold heater may be disconnected.

Having thus described my invention what I claim as new and desire to secure by Letters Patent is 1. An intake manifold heater comprising a plate having a vertical opening extending from the lower edge to a point adjacent the center, a flange formed on one face of the plate and extending around the edges of the plate and vertical opening, and a heating element received between the flanges.

2. An intake n'ianitold heater comprising a plate having a vertical opening extending from the lower edge to a point adjacent the center, a flange termed on one face of the plate and extending around the edges of the plate and vertical opening, said flanges having longitudinal alined recesses formed therein, and a heating element received li y tween the flanges.

3. An intake manifold heater comprising a plate having a vertical openin extending from the lower edge to a point at jacent the center, an arcuate casing secured to one -face ot the plate over the vertical opening, a flange formed on the opposite lace oi: the plate and extending around the edges of the plate and vertical opening, a heating ele ment received between the flanges, and a heating element received in the arcnate casing.

t. In combination with an intake manitold comprising a vertical pipe and substair tially horizontal extensions, a heater, said lliltfil' comprising a plate having a vertical opening to receive the vertical pipe, an arcuate casing secured to one face of the plate, over the vertical opening to inclose the vertical pipe, a flange termed on the opposite face of the plate. and extending around the edges of the plate and vertical opening, said flanges having li'mgitudinal alined recesses rormed therein "tor receiving the substantially horizontal extensions of the vertical pipe, a heating elcn'ient received between the flanges, a heating ele ment received in the areuate casing, and means for securing the heater to the manifold.

In testimony whereof I aliix my signature in presence of two witnesses.

VAUGHAN {l \Vitl N B It lll ER. V i tnesses i nssi n r ll-111vinnzoicn, J. ll. lVinnminonn. 

